they're most likely in /r/all. Reddit now has filters for subs that will show up in that feed, which handy.
It would show up in all. I won't no part of the hyper-liberal echo chamber or the national-populist cesspool.
why go to r/all/ at all? Maybe we just use reddit differently but I only read the subreddits I'm subbed to, so I never see stuff from r/politics or r/TheDonald